How to write the simplest polynomial function of -2i and 1+i

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .

If we pull out the middle player of team a and the fourth player of the team b. what will be the force of team a and team b? what is their sum of forces

11 12 triangle abc is congruent to triangle fde, and both triangles have the same orientation, as shown. what is the slope of df, which is also the slope of ac?